The name is applied in commerce to a complex mixture of carbohydrates obtained by boiling starch with dilute mineral acids; in chemistry, it denotes, with the prefixes d, 1 and d+l (or i), the dextro-rotatory, laevo-rotatory and inactive forms of the definite chemical compound defined above.
A second type of Arabian historiography is that in which an author combines the different traditions about one occurrence into one continuous narrative, but prefixes a statement as to the lines of authorities used and states which of them he mainly follows.
To each quotation, as he borrows it, Vincent prefixes the name of the book and author from whom it is taken, distinguishing, however, his own remarks by the word "actor."
By means of agglutination, that is, by adding to the bases form-words as prefixes, suffixes or infixes, the Tibetan language has developed a considerable grammatical system and is now agglutinating rather than isolating.
The old language seems to have pronounced prefixes extensively which in modern pronunciation in central Tibet are largely lost, whilst the soft initials have become aspirated or hardened and tones have developed, and in the west and east, where prefixes and soft initials have been preserved, there are no tones.